Home / 172,440,390.40-258,760,118.40-64,745,900.80

Finding the Fourth Proportional to 172,440,390.40, 258,760,118.40 and 64,745,900.80

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Solution

The fourth proportional to 172,440,390.40, 258,760,118.40 and 64,745,900.80 is: 97,156,222.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,440,390.40 : 258,760,118.40 = 64,745,900.80 : x
  2. Step 2: Convert to fraction form
    172,440,390.40/258,760,118.40 = 64,745,900.80/x
  3. Step 3: Cross multiply
    172,440,390.40x = 258,760,118.40 × 64,745,900.80
  4. Step 4: Simplify right side
    172,440,390.40x = 16,753,656,956,922,654
  5. Step 5: Solve for x
    x = 16,753,656,956,922,654/172,440,390.40
  6. Step 6: Final answer
    x = 97,156,222.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.